caa a22 4500 397571526 CHVBK 20180308164842.0 cr unu---uuuuu 161202e19961001xx s 000 0 eng 10.1093/ee/25.5.1026 doi (NATIONALLICENCE)oxford-10.1093/ee/25.5.1026 Survival and Reproduction in the Scarabaeine Dung Beetle Onthophagus binodis (Coleoptera: Scarabaeidae) on Dung Produced by Cattle on Grain Diets in Feedlots [Elektronische Daten] [Ian R. Dadour, David F. Cook] Feedlotting cattle with dietary supplements of grain before market is becoming a widespread practice in Australia. Many farmers involved in this practice have noticed a minimal amount of dung beetle activity in the dung produced by cattle being fed grain diets. In this study, the dung from both feedlotted (grain-fed) and pasture-fed cattle was assessed as a food and reproductive resource for the dung beetle Onthophagus binodis Thunberg by bioassay in the laboratory. The diet of grain-fed cattle consisted of either 15% lupins, 20% oats, and 65% barley (50% grain) (grain 1) or 70% lupin grain and 30% hay (grain 2). There was no significant difference in either adult beetle mortality or the emergence pattern of F1 progeny when beetles were maintained on dung from either grain-fed or pasture-fed cattle. However, dung beetles reared on dung from pasture-fed cattle produced significantly more brood masses compared with beetles reared on dung from cattle fed on grain 2. A significantly greater number of F1 progeny survived to adulthood from brood masses produced by beetles reared on dung from pasture-fed cattle compared with dung from grain-fed cattle. The progeny emerging from brood masses produced with dung from pasture-fed cattle were significantly larger compared with progeny emerging from brood masses produced with dung from grain-fed cattle. © 1996 Entomological Society of America Population Ecology nationallicence Onthophagus binodis nationallicence dung quality nationallicence reproduction nationallicence Dadour Ian R. Agriculture Western Australia, Baron-Hay Court, South Perth, Western Australia, 6151 aut Cook David F. Agriculture Western Australia, Baron-Hay Court, South Perth, Western Australia, 6151 aut Environmental Entomology Oxford University Press 25/5(1996-10-01), 1026-1031 0046-225X 25:5<1026 1996 25 ee https://doi.org/10.1093/ee/25.5.1026 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.5.1026 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dadour Ian R. Agriculture Western Australia, Baron-Hay Court, South Perth, Western Australia, 6151 aut NATIONALLICENCE 700 1- Cook David F. Agriculture Western Australia, Baron-Hay Court, South Perth, Western Australia, 6151 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/5(1996-10-01), 1026-1031 0046-225X 25:5<1026 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford